DESCRIPTION
iC-SM5L is a linear position sensor which operates on the AMR effect (anisotropic magneto resistance) and has been designed to work with magnetic scales which have a N/S pole pitch of 5 mm.
When the Sensor is moved along a magnetic scale with a N/S pole pitch of 5 mm the two Wheatstone bridges generate differential sinusoidal output voltages (PSIN - NSIN) and (PCOS - NCOS) phaseshifted at 90°. One sine/cosine cycle averaged using a pair of N/S poles is thus produced for a pole width. The absolute magnetic field strength must be large enough for the sensor to go into saturation and for the magnetization of iC-SM5L’s resistor stripes to assume the direction of the outer magnetic fields.

FEATURES
♦ Magneto resistive position sensor based on the AMR effect
♦ Strong field sensor for 5 mm N/S pole pitch
♦ High interpolation due to a sine signal with few harmonics
♦ Low saturation field strength
♦ High amplitude consistency with changes in distance
♦ Resistant to strong magnetic fields
♦ Not sensitive to external homogenous magnetic fields
♦ Small SMT capable package

APPLICATIONS
♦ Linear position sensing
♦ Length measuring systems
♦ Off-axis hollow shaft rotary encoders